Ilias ladishenskt



I. LADISHENSKY.

FIRE AND WATER TUBE BOILER.

APPLICATION min APR. 1. 1916.

1,195,367. Patented Aug. 22, 1916.

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ILIAS LADISHENSKY, 0F KIEFF, RUSSIA.

FIRE AND WATER TUBE BOILER.

To all whom it may concern:

Be it lmown that I ILIAS LADISHENSKY, engineer, residing at 112 Mariinsko-Blagovesshenska street, Kieff, South Russia, have invented certain new and useful Improvements in Fire and Water Tube Boilers, of which the following is a specification.

This invention relates to a combined firetube and water-tube boiler, the main objects of the invention being to provide an improved boiler which is compact in construction, light in weight, may be readily cleaned, and has a very efficient system of circulation of the water.

The boiler is also adapted for use either as a marine, locomotive, or stationary boiler.

Referring to the accompanying drawings which illustrate the preferred form of the improved boiler: Figure 1 is a sectional side elevation, Fig. 2 is a horizontal section, Fig. 3 is a rear view with the rear wall removed, Fig. 4 is a front view, Fig. 5 is a detail sectional view of a modification of one part of the boiler, and Fig. 6 is a detail sectional view of a modification of an other part of the boiler.

A main cylindrical shell or is provided with longitudinal fire tubes 7 passing therethrough, and through the rear plate of said shell is passed the upper ends of watertubes 5 entering near the top of the boiler adjacent the water level. The lower ends of said water-tubes b enter a mud collector 0.

Under the cylindrical shell a is arranged the furnace 71,, having the fire grate z extending from the fire bridge n to the front of the furnace adjacent the fire door 0. Below the fire grate is the ash pit S.

Water tubes 03 extend underneath the shell a from the front of the boiler to the rear and preferably run along the sides of the furnace h arranged in two groups each lying in a plane inclined inwardly from the vertical as indicated in Figs. 3 and 4. These tubes may be covered with fire bricks if desired.

At the front of the boiler the tubes (2 are led into chambers e which are provided with removable doors or covers m. At the rear end of the boiler the tubes (Z are led into similar chambers 0 located above, and at the ends of, the mud collector or drum 0. The back chambers e are carried by the mud Specification of Letters Patent.

Application filed April 7, 1916.

Patented Aug, 22, 1916. Serial No. 89,670.

collector 0 and are in communication therewith through suitable openings or pipes The front chambers e are in communication with the lower part of the front end of the shell a by suitable means such as short tubes 7'.

The various parts of the boiler are surrounded by an iron casing 70, the space between this casing and the rear water tubes Z) being filled with brickwork or other fire proof material as shown.

In operation the gases of combustion pass from the furnace it over the fire bridge 72, then upwardly adjacent the rear water tubes 5, through the fire tubes of the shell a into the chimney or uptake 25.

The water is fed either into the front chambers e or into the mud collector 0 and assuming it to be fed into the latter the circulation is as follows: Rising in the vertical water tubes 5 it passes into the rear of the shell (4 near the surface of the water therein where it mingles with the heated water rising in the shell a itself. At the front end of the shell a where the water is not so highly heated it passes out at the lower part into the front chambers e and thence into the front end of the tubes (Z, along the same to the rear chambers o and tubes 9 (Fig. 3), and back to the rear end of the shell a.

Instead of the tubes 5 being bent at the top they may lead into an additional chamber 32 in communication with the shell or as shown in Fig. 5. The shape of the shell or may also be modified as for example into the saddle shape shown in Fig. 6, the furnace space 72, in such case being located in the semi-tubular lower part.

lVhat I claim is:

In a steam boiler the combination of a main shell, fire tubes passing therethrough, a flue or uptake at the front end of said shell, a furnace beneath the same and from which the gases of combustion are adapted to pass to the rear ends of said fire tubes, substantially horizontal water pipes located below the shell and extending through said furnace from the front to the rear of the boiler, a front chamber arranged outside the boiler at the front end thereof said cham ber being in communication with the lower part of the shell and with the said water pipes, a rear chamber arranged inside the boiler at the rear end thereof and in commu- In testimony whereof I affix my signature nifittion with thelszltoid1 Water 1Pipes, almud in presence of two Witnesses.

co ector arrangec e OW saic rear cmmher and in communication therewith, and ILIAS LADISHENSKY pipes for connecting said. rear Chamber and WVitnesses:

said mud collector to the rear of the shell H. A. LOVIAGUINE,

adjacent the Water level therein. AUG. MUGHIS.

Copies oi? this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

